CNS

BRAIN
SPINAL CORD

PNS

Nerves connecting CNS to muscles and organs

SOMATIC

Nerves to and from the spinal cord that control muscle movement and touch.
Carries signals for voluntary and reflex movements

AUTONAMIC

Controls involuntary functions, like heartbeat, blood pressure, perspiration, respiration, and digestion.
Influenced by thought and emotion

SYMPATHETIC

Fight or Flight Response
Releases adrenaline, increase heart rate and blood pressure
Increases blood flow to skeletal muscles
Inhibits digestive functions

PARASYMPATHETIC

Rest and Digest
Calms the body down
Lowers heart rate, breathing rate and blood pressure
Increased activity of digestive system